Abstract: This invention describes a method and system for assimilating data, applying reasoning mechanisms, and emulating the thought processes of a credit officer for commercial credit analysis. The system aids a credit officer in the risk assessment and completion of a loan package. The system thereby improves loan turnaround time and customer service, improving loan servicing capacity, quality, and consistency of credit decisions, and reducing costs. The system includes: 1) a conventional data base management system subsystem that manages and collects data via electronic access and end-user data entry; and 2) a decision support expert system that applies a knowledge base and inference engine (collectively known as an assessment model) utilizing an evidence tree and a generalized weighting approach to analyze credit requests.